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Sliva [168]
3 years ago
12

Write the first four terms of a geometric sequence with a first term of 81 and a ratio of 1/3

Mathematics
2 answers:
zaharov [31]3 years ago
6 0

Answer:

Huh?

Step-by-step explanation:

const2013 [10]3 years ago
3 0

Answer:

Step-by-step explanation:

You might be interested in
Graph the system of inequalities y> 2x-3 and 3y-x≤6
Veronika [31]
Y > 2x - 3
3y - x ≤ 6
       ↓
y = 2x - 3
3y - x = 6

    3(2x - 3) - x = 6
3(2x) - 3(3) - x = 6
        6x - 9 - x = 6
        6x - x - 9 = 6
             5x - 9 = 6
             <u>    + 9 + 9</u>
                  <u>5x</u> = <u>15</u>
                   5      5
                    x = 3
y = 2x - 3
y = 2(3) - 3
y = 6 - 3
y = 3
(x, y) = (3, 3)
4 0
3 years ago
True or False ?
Gnoma [55]
True the answer is true babes :)
4 0
3 years ago
What’s the correct answer for this question?
weqwewe [10]

Answer:

Last answer choice

Step-by-step explanation:

The AAS congruence theorem uses two adjacent angles, followed by a side length on the side (not in between the angles.) Therefore, the first answer is ruled out (because it deals with angles and not sides), and the second answer is ruled out because it involves side lengths between angles. LP=MO may be true, but it does not compare the two triangles that we are interested in. However, the last answer choice is correct, because a midpoint divides a line exactly in half, meaning that both halves are the same length and therefore congruent. Therefore, the last answer choice is correct. Hope this helps!

7 0
3 years ago
Suppose a brand of light bulbs is normally​ distributed, with a mean life of 1400 hr and a standard deviation of 150 hr. Find th
Mariulka [41]

Answer:

The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr is 0.8524.

Step-by-step explanation:

Given : Suppose a brand of light bulbs is normally​ distributed, with a mean life of 1400 hr and a standard deviation of 150 hr.

To find : The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr ?

Solution :

Applying z-score formula,

z=\frac{x-\mu}{\sigma}

where, \mu=1400 is population mean

\sigma=150 is standard deviation

For x=1175 hour,

z=\frac{1175-1400}{150}

z=\frac{-225}{150}

z=-1.5

For x=1610 hour,

z=\frac{1610-1400}{150}

z=\frac{210}{150}

z=1.4

The required probability is,

P(1175< X

P(1175< X

Using z table, the values are

P(1175< X

P(1175< X

The probability that a light bulb of that brand lasts between 1175 hr and 1610 hr is 0.8524.

4 0
3 years ago
A courier service charges a $5 pick up fee plus $0.15 per mile. The total charge to deliver a package was $7.85. How many miles
Marianna [84]

Answer:

19 miles

Step-by-step explanation:

6 0
2 years ago
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